JP4587311B2 - Current distribution device - Google Patents

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JP4587311B2
JP4587311B2 JP2005264046A JP2005264046A JP4587311B2 JP 4587311 B2 JP4587311 B2 JP 4587311B2 JP 2005264046 A JP2005264046 A JP 2005264046A JP 2005264046 A JP2005264046 A JP 2005264046A JP 4587311 B2 JP4587311 B2 JP 4587311B2
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博嗣 川口
幹夫 山崎
徹 田中
孝司 寺尾
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Nippon Telegraph and Telephone Corp
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本発明は、電源装置の出力電流を通信装置ヘ分配する電流分配装置に属し、特にヒューズを着脱する際に、活線作業を行うことなく安全に作業するために、ヒューズ端子台と電源装置間を離す機構に関するものである。   The present invention belongs to a current distribution device that distributes the output current of a power supply device to a communication device, and in particular, when a fuse is attached or detached, in order to work safely without performing hot-wire work, between a fuse terminal block and a power supply device. It is related with the mechanism which releases.

図５は、電源装置ＥＵから電流分配装置ＩＢＳを介して通信装置Ｕに給電する従来の電流分配装置ＩＢＳの回路構成を示す。電流分配装置ＩＢＳの内部は、電源装置ＥＵの負極から直流給電ケーブルにより端子Ａに接続される。端子Ａと端子Ｄは導体バーＢＡＲ１で接続され、端子Ｄはヒューズ端子台ＦＵの―端である。ヒューズ端子台ＦＵの他端は端子Ｅに接続され、端子Ｅと端子Ｆは導体バーＢＡＲ４で接続される。端子Ｆは通信装置Ｕの負極端子ＵＢに直流給電ケーブルで接続される。―方、電源装置ＥＵの正極は直流給電ケーブルにより端子Ｈに接続される。端子Ｈと端子Ｇは導体バーＢＡＲ５で接続され、端子Ｇは通信装置ＢＡＲ１の正極端子ＵＡに直流給電ケーブルによって接続される。ヒューズ端子台ＦＵにヒューズを接続すると、電源装置ＥＵが導通するので、通信装置Ｕに電力が給電される。電流分配装置ＩＢＳは、警報用地気装置ＡＬを具備し、ヒューズ端子台ＦＵに接続されるヒューズが溶断した場合、ヒューズ断表示用ＬＥＤ（不図示）が点灯し、ヒューズを交換するとＬＥＤは消灯して通信装置Ｕに電源装置ＥＵの電力が給電される。   FIG. 5 shows a circuit configuration of a conventional current distribution device IBS that supplies power to the communication device U from the power supply device EU via the current distribution device IBS. The inside of the current distribution device IBS is connected to the terminal A from the negative electrode of the power supply device EU by a DC power feeding cable. Terminal A and terminal D are connected by a conductor bar BAR1, and terminal D is the negative end of the fuse terminal block FU. The other end of the fuse terminal block FU is connected to a terminal E, and the terminals E and F are connected by a conductor bar BAR4. The terminal F is connected to the negative terminal UB of the communication device U with a DC power supply cable. On the other hand, the positive electrode of the power supply unit EU is connected to the terminal H by a DC power supply cable. Terminal H and terminal G are connected by conductor bar BAR5, and terminal G is connected to positive terminal UA of communication device BAR1 by a DC power supply cable. When a fuse is connected to the fuse terminal block FU, the power supply unit EU becomes conductive, so that power is supplied to the communication unit U. The current distribution device IBS has an alarm ground device AL, and when a fuse connected to the fuse terminal block FU is blown, a fuse blow display LED (not shown) is turned on, and when the fuse is replaced, the LED is turned off. Thus, the power of the power supply device EU is supplied to the communication device U.

ここで、ヒューズをヒューズ端子台ＦＵに接続する場合、接点の締付けが不十分であると、接触抵抗により接点で発熱を起こし、場合によっては発火する恐れがある。また、端子Ｄまで常に電位が生じているため、接点を締付ける際に周囲の金属部分と接触して短絡する恐れもある。締付け箇所がない差込み式のヒューズを用いた場合、大電流に対しては差込み箇所の接触が不十分であるため、接触抵抗が増大し、場合によっては発火する恐れがあるという問題点があった。
特開平０８−２８９４７６号公開 （電流分配装置） 特開平０８−０７２６３３号公開 （自動車の電流分配装置） Here, when the fuse is connected to the fuse terminal block FU, if the contact is not sufficiently tightened, the contact may generate heat due to contact resistance, and in some cases, there is a risk of fire. In addition, since a potential is always generated up to the terminal D, there is a possibility of short circuit due to contact with the surrounding metal portion when the contact is tightened. When a plug-in type fuse with no tightening point is used, contact with the plug point is insufficient for large currents, which increases the contact resistance and may cause fire in some cases. .
JP 08-289476 A (Current distribution device) JP 08-072633 A (current distribution device for automobile)

従来の電流分配装置では、差込み式のヒューズが用いられることが多く、通信装置に大電流が流れる場合には、ヒューズとヒューズ端子台の接触が不十分であるため、接触抵抗により接点で発熱を起こし、場合によっては発火する恐れがある。締付け式のヒューズを用いた場合には、接触抵抗が低減できるが、締付け箇所に常に電位が生じるため、ヒューズを締付ける際に周囲の金属部分と接触して短絡する可能性もある。以上の問題を解決するために本発明は、ヒューズの接続箇所を無電圧にして安全にヒューズを締付けることができ、接点の接触抵抗を低減できる構成にすることを目的とする。   In conventional current distribution devices, plug-in fuses are often used, and when a large current flows through a communication device, the contact between the fuse and the fuse terminal block is insufficient. May cause fire and in some cases fire. When a tightening type fuse is used, the contact resistance can be reduced. However, since a potential is always generated at the tightening point, there is a possibility that the surrounding metal part is contacted and short-circuited when the fuse is tightened. In order to solve the above-described problems, an object of the present invention is to provide a configuration in which a fuse can be safely tightened with no voltage at a connection point of the fuse, and the contact resistance of the contact can be reduced.

上記目的を達成するため本発明は、電流分配装置を電源装置から離し、ヒューズを着脱する場合に発生の可能性がある短絡事故を回避するとともに、通信装置に大電流が流れる場合でも問題ない程度に接点の接触抵抗を低減することを目的としている。   In order to achieve the above object, the present invention avoids a short circuit accident that may occur when the current distribution device is separated from the power supply device and the fuse is attached and detached, and there is no problem even when a large current flows through the communication device. The purpose is to reduce the contact resistance of the contacts.

すなわち、電源装置から複数の通信装置へ電力を供給するための電流分配装置であって、前記電流分配装置は複数の導体バーと、ヒューズ端子台と有し、ヒューズの交換時に前記ヒューズ端子台と前記電源装置との間に電位を生じさせない導体バー切断機構を有し、
導体バー切断機構が、前記電源装置に接続された第１の導体バーと、前記ヒューズ端子台に接続された第２の導体バーを有し、
それぞれの導体バーは固定盤によって固定され、
絶縁された万力棒に取付けられた第３の導体バーを有し、前記万力棒を回転させることにより、前記第１及び第２の導体バーに前記第３の導体バーを締め付けることにより電気的に接続、一方、前記万力棒を逆方向に回転させることにより、前記第１及び第２の導体バーから前記第３の導体バーを浮き上がらせることにより電気的に切断されることを特徴とする。 That is, a current distribution device for supplying power from a power supply device to a plurality of communication devices, wherein the current distribution device has a plurality of conductor bars and a fuse terminal block, and when the fuse is replaced, the fuse terminal block have a conductor bar cutting mechanism not to cause potential between the power supply device,
A conductor bar cutting mechanism having a first conductor bar connected to the power supply device and a second conductor bar connected to the fuse terminal block;
Each conductor bar is fixed by a fixed platen,
Having a third conductor bar attached to an insulated vise bar, and rotating the vise bar to tighten the third conductor bar to the first and second conductor bars. Connected, and on the other hand, by rotating the vise bar in the opposite direction, the third conductor bar is lifted from the first and second conductor bars to be electrically disconnected. To do.

さらに、本発明の電流分配装置において、前記ヒューズ端子台と前記通信装置の負極端子との間にシャント抵抗が接続され、警報用地気装置を備えることが好ましい。   Furthermore, in the current distribution device of the present invention, it is preferable that a shunt resistor is connected between the fuse terminal block and the negative terminal of the communication device, and an alarm ground device is provided.

以下、図面を用いて詳細に説明する。   Hereinafter, it explains in detail using a drawing.

図１は本発明の第１実施例である電流分配装置の内部構成と電流分配装置を用いた直流給電系の接続構成を示している。   FIG. 1 shows an internal configuration of a current distribution device according to a first embodiment of the present invention and a connection configuration of a DC power supply system using the current distribution device.

電源装置ＥＵの負極を直流給電ケーブルによって端子Ａに接続し、端子Ａと端子Ｂは導体バーＢＡＲ１で接続する。導体バーＢＡＲ１と導体バーＢＡＲ３を絶縁された固定盤１８０に離隔して水平に固定し、絶縁された万力棒の先端に導体バーＢＡＲ２を取付ける。導体バーＢＡＲ２と導体バーＢＡＲ１、導体バーＢＡＲ３はそれぞれ離隔されている。端子Ｃと端子Ｄは導体バーＢＡＲ３で接続され、端子Ｄはヒューズ端子台の一端である。ヒューズ端子台の他端は端子Ｅに接続され、端子Ｅと端子Ｆはシャント抵抗ＳＴを介して導体バーＢＡＲ４で接続される。端子Ｆは通信装置Ｕの負極端子ＵＢに直流給電ケーブルで接続される。電源装置ＥＵの正極には直流給電ケーブルにより端子Ｈが接続され、端子Ｈと端子Ｇは導体バーＢＡＲ５で接続される。端子Ｇは通信装置Ｕの正極端子ＵＡに直流給電ケーブルで接続される。端子Ｆと端子Ｇ間に給電表示用ＬＥＤが抵抗Ｒを介して接続される。また電流分配装置は、警報用地気装置ＡＬを具備し、端子Ａと端子Ｈ間の電圧、シャント抵抗ＳＴの両端電圧、端子Ｆと端子Ｇの電圧を測定し、警報用地気装置ＡＬで演算して表示パネルＰで電流分配装置ＩＢＳの出力電流及び出力電圧を表示する。   The negative electrode of the power supply EU is connected to the terminal A by a DC power supply cable, and the terminal A and the terminal B are connected by a conductor bar BAR1. The conductor bar BAR1 and the conductor bar BAR3 are spaced apart and fixed horizontally to the insulated stationary platen 180, and the conductor bar BAR2 is attached to the tip of the insulated vise bar. The conductor bar BAR2, the conductor bar BAR1, and the conductor bar BAR3 are spaced apart from each other. Terminal C and terminal D are connected by a conductor bar BAR3, and terminal D is one end of a fuse terminal block. The other end of the fuse terminal block is connected to a terminal E, and the terminals E and F are connected by a conductor bar BAR4 through a shunt resistor ST. The terminal F is connected to the negative terminal UB of the communication device U with a DC power supply cable. A terminal H is connected to the positive electrode of the power supply EU by a DC power supply cable, and the terminal H and the terminal G are connected by a conductor bar BAR5. The terminal G is connected to the positive terminal UA of the communication device U with a DC power supply cable. An LED for power supply display is connected between the terminal F and the terminal G via a resistor R. In addition, the current distribution device includes an alarm ground device AL, measures the voltage between the terminal A and the terminal H, the voltage across the shunt resistor ST, the voltage at the terminal F and the terminal G, and calculates the alarm ground device AL. The display panel P displays the output current and output voltage of the current distribution device IBS.

電源装置ＥＵは電流分配装置ＩＢＳを介して通信装置Ｕと接続されている。導体バーＢＡＲ１及びＢＡＲ３は固定盤ＢＤによって固定され、導体バーＢＡＲ２は万力棒ＭＢに固定されている。万力棒ＭＢを離す方向に回転させると導体バーＢＡＲ２は導体バーＢＡＲ１及びＢＡＲ３から引き離される。この状態では電源装置ＥＵからの電力が供給される端子Ａと端子Ｄが完全に切断されるため、いかなる電流も流れることはない。ここで、ヒューズ端子台ＦＵにヒューズを接続し、万力棒ＭＢを締める方向に回転させ、導体バーＢＡＲ２をＢＡＲ１とＢＡＲ３と密接させると、端子Ａから端子Ｄが導通し、給電表示用ＬＥＤが点灯する。通信装置Ｕの正極端子ＵＡと負極端子ＵＢ間に電位が生じ、通信装置Ｕに電源装置ＥＵの電力が給電できる。端子Ｂ及び端子Ｃは万力棒ＭＢで十分に締付けることにより、導体バーＢＡＲ１、ＢＡＲ２、ＢＡＲ３は互いに密着され、大電流が流れる場合であっても接触抵抗を低減できる。従って、接点付近で発熱及び発火の恐れはなくなる。   The power supply device EU is connected to the communication device U via a current distribution device IBS. The conductor bars BAR1 and BAR3 are fixed by a stationary platen BD, and the conductor bar BAR2 is fixed to the vise bar MB. When the vise bar MB is rotated in the direction of separating, the conductor bar BAR2 is pulled away from the conductor bars BAR1 and BAR3. In this state, since the terminal A and the terminal D to which the power from the power supply unit EU is supplied are completely disconnected, no current flows. Here, when a fuse is connected to the fuse terminal block FU, the vise bar MB is rotated in the direction of tightening, and the conductor bar BAR2 is brought into close contact with BAR1 and BAR3, the terminal D is electrically connected to the terminal A, and the power feeding display LED is Light. A potential is generated between the positive terminal UA and the negative terminal UB of the communication device U, and the power of the power supply device EU can be supplied to the communication device U. By sufficiently tightening the terminals B and C with the vise MB, the conductor bars BAR1, BAR2, and BAR3 are in close contact with each other, and the contact resistance can be reduced even when a large current flows. Therefore, there is no fear of heat generation and ignition near the contact.

何らかの原因でヒューズが溶断するとＬＥＤが消灯し、ヒューズの交換が必要となる。この場合、工具を用いて万力棒ＭＢを導体バーＢＡＲ２が導体バーＢＡＲ１及びＢＡＲ３から離される向きに回転させる。このとき、導体バーＢＡＲ２は給電系から離され、ヒューズ端子台ＦＵの両端が無電圧となり、いかなる電流も流れることはない。ヒューズ端子台ＦＵが無電圧であることを確認した後、安全にヒューズを交換することができる。ヒューズを交換した後、再び工具を用いて万力棒を回転させ、導体バーＢＡＲ１、ＢＡＲ２、ＢＡＲ３を密接させるとＬＥＤが点灯し、通信装置Ｕに安全に電源装置ＥＵの電力が給電される。また、警報用地気装置ＡＬとして、警報用ヒューズ回路をヒューズ端子台ＦＵに並列に使用できることは言うまでもない。   If the fuse is blown for some reason, the LED is turned off and the fuse needs to be replaced. In this case, the tool bar is used to rotate the vise bar MB in a direction in which the conductor bar BAR2 is separated from the conductor bars BAR1 and BAR3. At this time, the conductor bar BAR2 is separated from the power feeding system, both ends of the fuse terminal block FU become no voltage, and no current flows. After confirming that the fuse terminal block FU has no voltage, the fuse can be safely replaced. After exchanging the fuse, the vise bar is rotated again using a tool, and the conductor bars BAR1, BAR2, and BAR3 are brought into close contact with each other, the LED is turned on, and the power of the power supply device EU is safely supplied to the communication device U. Needless to say, the alarm fuse circuit AL can be used in parallel with the fuse terminal block FU.

以上述べたように、本発明による電流分配装置は、電流分配装置内部のヒューズを接続する場合に、電源装置から電流分配装置を離すことによりヒューズ端子台と周囲の金属部分の接触による短絡事故を無くし、通信装置に大電流が流れる場合にも接触抵抗を低減できるという効果がある。   As described above, when the current distribution device according to the present invention is connected to the fuse inside the current distribution device, the current distribution device is separated from the power supply device, thereby causing a short circuit accident due to contact between the fuse terminal block and the surrounding metal part. Even when a large current flows through the communication device, the contact resistance can be reduced.

本発明の実施例１に係る電流分配装置の内部構成とそれを用いた直流給電系を示す図である。It is a figure which shows the internal structure of the electric current distribution apparatus which concerns on Example 1 of this invention, and a DC power supply system using the same. 本発明の実施例１に係る電流分配装置の外観と内部構成を示す図である。It is a figure which shows the external appearance and internal structure of the current distribution apparatus which concern on Example 1 of this invention. 本発明の実施例２に係る電流分配装置の構成とそれを用いた直流給電系を示す図である。It is a figure which shows the structure of the electric current distribution apparatus which concerns on Example 2 of this invention, and a DC power supply system using the same. 本発明の実施例２に係る電流分配装置の外観と内部構成を示す図である。It is a figure which shows the external appearance and internal structure of the current distribution apparatus which concern on Example 2 of this invention. 従来の電流分配装置の構成とそれを用いた直流給電系を示す図である。It is a figure which shows the structure of the conventional electric current distribution apparatus, and a DC power feeding system using the same.

符号の説明Explanation of symbols

ＩＢＳ 電流分配装置
ＢＡＲ１、ＢＡＲ２、ＢＡＲ３、ＢＡＲ４、ＢＡＲ５ 導体バー
ＥＵ 電源装置
Ｕ 通信装置
ＵＡ 通信装置の正極端子
ＵＢ 通信装置の負極端子
ＦＵ ヒューズ端子台
ＭＢ 万力棒
ＢＫ 断路器
ＬＥＤ ＬＥＤ素子
ＡＬ 警報用地気装置
ＢＤ 固定盤
ＳＴ シャント抵抗
Ｐ パネル
Ａ、Ｂ、Ｃ、Ｄ、Ｅ、Ｆ、Ｇ、Ｈ 端子 IBS Current distribution device BAR1, BAR2, BAR3, BAR4, BAR5 Conductor bar EU Power supply device U Communication device UA Communication device positive terminal UB Communication device negative terminal FU Fuse terminal block MB Vise bar BK Disconnector LED LED element AL Alarm site Qi device BD Fixed platen ST Shunt resistor P Panel A, B, C, D, E, F, G, H terminal

Claims (2)

電源装置から複数の通信装置へ電力を供給するための電流分配装置であって、
前記電流分配装置は複数の導体バーと、ヒューズ端子台とを有し、
ヒューズの交換時に前記ヒューズ端子台と前記電源装置との間に電位を生じさせない導体バー切断機構を有し、
該導体バー切断機構が、前記電源装置に接続された第１の導体バーと、前記ヒューズ端子台に接続された第２の導体バーを有し、
それぞれの導体バーは固定盤によって固定され、
更に、絶縁された万力棒に取付けられた第３の導体バーを有し、前記万力棒を回転させることにより、前記第１及び第２の導体バーに前記第３の導体バーを締め付けることにより電気的に接続し、
一方、前記万力棒を逆方向に回転させることにより、前記第１及び第２の導体バーから前記第３の導体バーを浮き上がらせることにより電気的に切断されることを特徴とする電流分配装置。 A current distribution device for supplying power from a power supply device to a plurality of communication devices,
The current distribution device has a plurality of conductor bars and a fuse terminal block,
Have a let no conductor bars cutting mechanism caused the potential between the fuse the fuse terminal block during replacement of said power unit,
The conductor bar cutting mechanism has a first conductor bar connected to the power supply device and a second conductor bar connected to the fuse terminal block,
Each conductor bar is fixed by a fixed platen,
And a third conductor bar attached to the insulated vise bar, and tightening the third conductor bar to the first and second conductor bars by rotating the vise bar. Electrically connect with
On the other hand, by rotating the vise rod in the opposite direction, the current distribution device according to claim Rukoto are electrically disconnected by causing float the third conductor bars from said first and second conductor bars . 前記ヒューズ端子台と前記通信装置の負極端子との間にシャント抵抗が接続され、
警報用地気装置を備えることを特徴とする請求項1記載の電気分流装置。 A shunt resistor is connected between the fuse terminal block and the negative terminal of the communication device,
Electrical shunt device of claim 1, wherein further comprising a warning land care device.
JP2005264046A 2005-09-12 2005-09-12 Current distribution device Active JP4587311B2 (en)

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JP4587311B2 true JP4587311B2 (en) 2010-11-24

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JPH04230916A (en) * 1990-04-14 1992-08-19 Sachsenwerk Ag Load switch or load-cutting switch and switching circuit device having fuse
JPH06338818A (en) * 1993-05-26 1994-12-06 Nippon Telegr & Teleph Corp <Ntt> Feeding method for communication equipment
JPH0872633A (en) * 1994-09-01 1996-03-19 Sumitomo Wiring Syst Ltd Current distributing device of automobile
JPH0923537A (en) * 1995-07-06 1997-01-21 Yazaki Corp Electric connection box fitted with fuse
JPH1059090A (en) * 1996-08-20 1998-03-03 Yazaki Corp Vehicular power distributor
JPH10125209A (en) * 1996-10-16 1998-05-15 Sumitomo Wiring Syst Ltd Power distribution equipment of wire harness for automobile
JP2000223002A (en) * 1999-01-27 2000-08-11 Yazaki Corp Power supply breaking device
JP2001112168A (en) * 1999-10-08 2001-04-20 Fujitsu Ltd Power supply system
JP2001286034A (en) * 2000-03-31 2001-10-12 Auto Network Gijutsu Kenkyusho:Kk Terminal and electrical connection box using the same
JP2002193036A (en) * 2000-12-27 2002-07-10 Yazaki Corp Device for controlling lamp for vehicle
JP2003040050A (en) * 2001-07-27 2003-02-13 Yazaki Corp Control device for vehicle power source
JP2003100382A (en) * 2001-09-25 2003-04-04 Yazaki Corp Lever engagement type power-source circuit breaker

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04230916A (en) * 1990-04-14 1992-08-19 Sachsenwerk Ag Load switch or load-cutting switch and switching circuit device having fuse
JPH06338818A (en) * 1993-05-26 1994-12-06 Nippon Telegr & Teleph Corp <Ntt> Feeding method for communication equipment
JPH0872633A (en) * 1994-09-01 1996-03-19 Sumitomo Wiring Syst Ltd Current distributing device of automobile
JPH0923537A (en) * 1995-07-06 1997-01-21 Yazaki Corp Electric connection box fitted with fuse
JPH1059090A (en) * 1996-08-20 1998-03-03 Yazaki Corp Vehicular power distributor
JPH10125209A (en) * 1996-10-16 1998-05-15 Sumitomo Wiring Syst Ltd Power distribution equipment of wire harness for automobile
JP2000223002A (en) * 1999-01-27 2000-08-11 Yazaki Corp Power supply breaking device
JP2001112168A (en) * 1999-10-08 2001-04-20 Fujitsu Ltd Power supply system
JP2001286034A (en) * 2000-03-31 2001-10-12 Auto Network Gijutsu Kenkyusho:Kk Terminal and electrical connection box using the same
JP2002193036A (en) * 2000-12-27 2002-07-10 Yazaki Corp Device for controlling lamp for vehicle
JP2003040050A (en) * 2001-07-27 2003-02-13 Yazaki Corp Control device for vehicle power source
JP2003100382A (en) * 2001-09-25 2003-04-04 Yazaki Corp Lever engagement type power-source circuit breaker

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